Sash frame and sash assembly



May 14, 1968 E. KOLLER SASH FRAME AND SASH ASSEMBLY 3 Sheets-Sheet 1 Filed Oct. 28, 1965 I NVE N TOR 1 297.25% @Zler May 14, 1968 E. KOLLER SASH FRAME AND SASH ASSEMBLY Filed Oct'.

5 Sheets-Sheet 1 J /nU va 2 a W W W m 7m fill/1'14 w United States Patent M 3,382,613 SASH FRAME AND SASH ASSEMBLY Ernst Koller, 64 Paradiestrasse, Binningen 4102, Switzerland Filed Oct. 28, 1965, Ser. No. 505,494 Claims priority, application Switzerland, Jan. 20, 1965, 801/65; June 15, 1965, 8,320/65 Claims. (Cl. 49419) ABSTRACT OF THE DISCLOSURE A sash frame assembly in which the frame has two longitudinal groves with a first offset part projecting towards the sash to form an abutment ledge with the latter composed of elastic material and being located in one of the grooves. There is a second offset part also of elastic material and located in the other of the grooves to provide a seal and second abutment for the sash.

This invention relates to sash frames and sashes cooperating therewith, in particular for windows.

Hitherto, prefabricated sash frames for windows and doors, with or without roller blind boxes or shutters, have had to be manufactured in a very wide variety of designs according to the height and width, size and construction of the sashes and according to the different wall thicknesses, breastworks and ceiling connections. If roller blinds or shutters were required, it was also necessary to provide the boxes for the blinds in different sizes to cater for the different sizes of windows and to provide different types of such boxes and fitments for operating the blinds, and different designs of sash frames and boxes have had to be provided according to the direction in which the sashes were turned to open them and according to whether the sashes were rebated on the inside or outside. In addition, the profiles of the easement frames mounted on the sash frames varied greatly according to the type of window, i.e. whether the window was of the pivoted, sliding or hinged type or the like.

Moreover, design and manufacture of the sash frames and of the roller blind boxes has been complicated because the various fittings, recesses and means of operating the blinds or shutters necessitated different specifications and designs. Another disadvantage is that the socalled ears of the roller blind box, which projects from the window frame or sash frame provides an unattractive finish, especially in the room or interior, and makes the connection to the wall more complicated. A further disadvantage is that two types of covers or stone plates are necessary according to the size of the blind box and according to whether the window opens to the inside or outside. Thus, a vast number of wasteful manufacturing stages and design studies have been necessary which increases the cost. Assembly is also too complicated since it is necessary to fit the basic frame, then the casement frame, then the sashes and lastly to apply a variety of coating.

The present invention obviates the above mentioned disadvantages by means of the fact that the sash frame 'also constitutes the casement frame and comprises at least two projecting parts which are offset from each other and project towards the sashes, the more strongly projecting part providing a firm abutment for the sash while the other part consists of a rubbery elastic ledge which forms a sliding seal and which is inserted in a longitudinal groove of the sash frame profile and forms the second abutment for the sash. The sash frame is advantageously of stainless strip metal and is cemented in like the conventional casement or basic frame.

It can be made in a standard size and with a particular profiling which has the same width as the box for the roller blind. In that case, the box does not have any parts projecting over the sash frame, so that no wall attachments are necessary. The end walls of the box can either be left visible on the outside and inside or covered over or fitted into the ceiling.

The sash frame can always have the same form of rabbet or stop regardless of whether the profile is small or large, with the result that the dimensions of the frame need never exceed the thickness of the wall and the lintel can always be of the same design.

The roller blind box is reinforced with a support of Z-shaped section so that it can take up the weight of the breastwork and ceiling without its end surfaces or fittings for operating the blind being changed in any way. Any suitable sash material such as wood, aluminium or steel may be fitted in contact with the sash frame, and the profile of the sash can always be chosen according to the size and type of opening, provided the special rabbet or stop with the sliding seal permits this.

In the accompanying drawings which show a constructional example of the invention:

FIG. 1 is an elevational view of a window sash frame with roller blind box and sashes,

FIG. 2 is a vertical section on a larger scale,

FIG. 3 shows a detail,

FIG. 4 is a horizontal section, through the roller blind box 011 a larger scale,

FIG. 5 is a horizontal section, also on a larger scale, through the sash frame and the window sash when closed,

FIG. 6 is a vertical section,

FIG. 7 shows a modification,

FIG. 8 is a similar view of a second modification,

FIG. 9 is a vertical section through a threshold and wing of a door.

As shown in FIG. 1, a sash frame 2 is provided with a roller blind box 1, which forms a casement frame. The box is flush on the surface and edges, at least on the outside. The parts for operating the blinds may be arranged either on the side 3 or on the side 3a.

FIG. 2 shows a breastwork 4, ceiling 5, external wall finish 7 and plaster 8. A heating body 9 is attached to the breastwork 4, but can be mounted on the sash frame if this is a strip element. A baffle also acts as a condensation trap 10 and is attached to the sash frame. Between the sash frame and the breastwork plate is a hot air slot 11. A roller blind box 12 has an external side wall 13 and an interior side wall 14. Since the box 12 has to carry the breastwork 4 and ceiling 5, it is reinforced with a support 6 of Z-shaped profile.

The roller blind box is finished with an interior end part 15 (FIG. 3) which is so designed that either the box cover 17 (which may be used either on the inside or the outside) or the sash frame 16 can fit against it, depending on whether the window is mounted nearer the outside or the inside surface of the wall.

In FIG. 4, the sash frame 21 and sash 23 are shown in broken lines situated below the box 12. The two ends 30 of the box, which are made of steel sheeting, are bent into the plasterwork and finish at 22 slightly set back with the sash frame 21 and box 12 so that the plasterwork is as firmly held against the box as in the sash frame. To compensate for the different coefiicients of expansion of concrete, plaster, steel and aluminium sheeting and avoid cracks in the plaster, an insulating strip 35 is glued to the plates 30. Since the sash frame also constitutes the casement frame for the sashes 23, it is so designed that it is in most cases flush with the roller blind box regardless of whether it is set backwards or forwards. The roller 38 for the blind and the end shaft 38a can be adjusted so that the blind can be operated either from the right or from the left and always over the sash frame or the ceiling connection. If the walls are thick, the exit can be in the cover.

According to FIGS. 5, 6 and 7, the sash frame 21 or 211a has two projecting parts projecting towards the sash 23, the more strongly projecting part forming a fixed abutment for the sash 23 while the other part is a rubbery elastic ledge 41 forming a sliding seal. This is inserted in a longitudinal groove 40 of the profile of the sash frame. It is tongue-shaped and forms the second abutment.

In the sash frame profile according to FIG. 5, the more strongly projecting part consists of a shoulder 39 while in the design according to FIG. 6 it consists of a longitudinal rib 18 and in FIG. 7 it consists of a rubbery elastic abutment ledge 19 which is anchored in a longitudinal groove 20 of the sash frame profile 21a. In the last mentioned case, the abutment is not rigid as in the other two cases but nevertheless firm. In FIG. 6, the longitudinal rib 18 has a longitudinal groove 28 which is open to the inside and in which a breastwork plate 42 is inserted. The other breastwork plate 42 is inserted in a corresponding groove 31 which is arranged in another hollow rib 32 which forms one flank of the groove 40.

According to FIG. 6, a water discharge pipe 33 is attached to the lowest point of the flat portion on the sash frame, which portion is situated between the two abutments and slopes towards the shoulder 39. This pipe is covered by a weather ledge 43.

In the embodiment according to FIGS. and 6, the sash profile 23 has two arms 36 and 37 on the side adjacent to the sash frame 21. The arm 36 cooperates with the first abutment, i.e. with the shoulder 39 (FIG. 5) or longitudinal rib 18 (FIG. 6) of the sash frame 2 1. The other arm 37 cooperates with the second abutment, i.e. with the ledge 41 which forms the sliding seal.

According to FIG. 5, a lock 25 is fitted to the central groove 24 of the sash profile 23. The handle 25a of the lock is situated in the middle of the arm 37.

As shown in FIGS. 5 and 6, each .of the arms 36 and 37 of the sash 23 has a longitudinal groove 26 and 27 respectively which is open to the side facing away from the sash frame 21. The groove 26 serves to collect water from the joints.

The longitudinal groove 27 FIG. 6 has longitudinal ridges 27a on one side for anchoring clamping members of the glass supporting bars 29 or 29a inserted in this groove.

In the embodiment according to FIG. 7, the sash frame profile 21a has two terminal grooves 52 and 53 open to the side facing away from the sash. Into the external groove 53 is inserted a rubbery elastic sealing ledge 49 to close the gap between the groove and the outer wall surface 50. The inner groove 52 serves for the attachment of an additional profile 51. Between the adjacent flanks of the grooves 20 and 40 and continuous with them are additional longitudinal grooves 44 and 45 respectively which are .open on the side remote from the sash. These grooves may be used for the insertion of an insulating band 46, as shown for example in the groove 44.

According to FIG. 8, the sash frame 54 which is made of steel, light metal or plastic and which also constitutes the casement frame has two longitudinal grooves 56 and 57 which are open to the side facing the door 55 and which contain a shock absorbing stop ledge 58 and a slide sealing ledge 59 respectively. The far side walls 60 and 61 respectively of the two grooves 56 and 57 respectively bear slidably against the inner surface of an arm 62 or 63 respectively of stirrup-shape guide ledge 64. The web 65 has a middle longitudinal zone 66 which in cross-section extends obliquely inwards. This zone has perforations arranged at intervals, in which attachment screws 67 are inserted which are screwed into wall plugs 68 fixed into corresponding bores in the wall 69. The oblique position of the screws 67 due to the oblique position of the middle zone of the web has the advantage that the screws extend away from the end 70 of the wall, thereby avoiding cracks in the wall.

According to FIG. 8, the base of each groove 56 and 57 of at least one bar of the sash frame is perforated by numerous screw-threaded apertures in which distance screws 71 are inserted which have their heads in the corresponding grooves 56 and 57 while their free shaft ends are locked against the web 65. This ensures that the sash frame will fit firmly against the brickwork also on the side opposite to the rail 64. The bars 58 and 59 are only inserted in the grooves 56 and 57 after the sash frame has been fixed, and they cover the heads of the screw 71.

Between adjacent screws 71, an attachment screw may extend through a perforation in the base .of the groove and through a corresponding screw-threaded aperture in the guide rail so that the frame is rigidly connected to the guide rail.

A hinge plate 72 is attached to the door 55 with screws 73 in the usual manner but is connected to the frame 54 by a cam which extends into the groove 57 and which is provided at each point of attachment with an aperture through which an attachment screw 74 extends. To prevent both lateral and axial displacements of this screw, the two side walls of the groove 57 have internal screw threadings 75 provided in the appropriate positions on their inner surface, which constitute the partial continuation of an internal screw threading extending through the base of the groove. The internal diameter of this threading is at least equal to the width of the groove 57 so that the countersunk screw 74 extending through the aperture in the cam of the door hinge is held firmly in all directions when it has been screwed into the internal threading and anchored in the threading at the base of the groove.

The sealing ledge 59 inserted in the groove 57 makes frictional contact with the walls of the groove 57 but can be displaced inwards or outwards in the groove to adjust it to the door 55, and if necessary, localised recesses may be provided in the ledge 59 in the region of the cam or projection of the door hinge.

To make a neat finish for the frame 54 at the end near the Wall, the profile of the frame is closed by a flange 76 the free end 77 of which is bent inwards and makes contact with the wall end 7 0.

On the opposite side, the frame is provided with a flange 78 which together with the part 60 of the frame 54 forms a groove 79 which is open towards the wall and in which an elastic yielding sealing ledge 80 is inserted. This ensures a tight seal, especially against sound.

As illustrated for one side in FIG. 9, the threshold 81 is provided at both ends with shackles 82 which are bent at the top and which engage in the two longitudinal grooves 56 and 57 of the frame 54 and they each have a longitudinal slot 83 in the middle, which is open to the top. Through each slOt 83 extends the shaft of a clamping screw 84 which is inserted in a suitable screwthreaded aperture in the base of the groove 56 or 57 respectively. The height of the threshold 81 can be adjusted after loosening the screws 74, and the position can then be fixed by tightening the screws.

The door 55 has a longitudinal groove 85 which is open at the bottom and in which a two-tongued elastic, yielding sealing ledge 86 is inserted the tongues of which cooperate With the cambered threshold 81.

These variations enable the frame to be mounted flush and with a tight fit even if the internal measurements of the wall opening for the insertion of the frames are not accurate, and no auxiliary elements visible from the outside are required.

What is claimed is:

1. A sash frame and sash assembly comprising a sash; and a sash frame with two longitudinal grooves therein, said frame having a first offset part projecting towards said sash to form an abutment ledge for said sash, said ledge being of elastic material and being located in one of said grooves, and a second oifset part also of elastic material and located in the other of said grooves to provide a seal and second abutment for said sash, said frame having a profile of which the adjacent side walls of said two grooves are slidable in contact with the inner surface of an arm of a stirrup-shaped guide rail which is attached to the wall, and the base of each groove of at least one bar of the sash frame being perforated with screwthreaded apertures in which distance screws are inserted the heads of which are situated in the corresponding grooves while the free ends are locked against the web of the rail.

2. An assembly as claimed in claim 1 in which the bases of both said grooves have perforations each of which is opposite a screw thread in the web of said guide rail in which is inserted a screw extending through the perforation in the base of the groove, which screw serves to secure the sash frame to the guide rail.

3. An assembly as claimed in claim 1 in which the l web of said guide rail has a middle longitudinal zone which in cross-section extends obliquely inwards and which has perforations arranged at intervals along its length for the insertion of attachment screws designed to be fixed to the wall.

4. A sash frame and sash assembly comprising a sash; and a sash frame with two longitudinal grooves therein, said frame having a first oifset part projecting towards said sash to form an abutment ledge for said sash, said ledge being of elastic material and being located in one of said grooves, and a second offset part also of elastic material and located in the other of said grooves to provide a seal and second abutment for said sash, the two side walls of said second groove being provided on the inner surface with internal screw threaded parts which constitute the partial continuation of an internal screw threading extending through the base of the groove, and the internal diameter of which is at least equal to the width of the groove.

5. A sash frame and sash assembly comprising a sash; and a sash frame with two longitudinal grooves therein, said frame having a first offset part projecting towards said sash to form an abutment ledge for said sash, said ledge being of elastic material and being located in one of said grooves, and a second offset part also of elastic material and located in the other of said grooves to provide a seal and second abutment for said sash, and a threshold having shackles at both ends which are bent at the top and which engage in the two longitudinal grooves of the sash frame and which can be fixed at different levels by means of screws.

References Cited UNITED STATES PATENTS 2,169,713 8/1939 Strond 49489 X 2,792,088 5/1957 Blanchard 49489 X 2,918,706 12/1959 Rust et al 49-408 3,142,097 7/ 1964 Oehmig 49476 3,229,332 1/1966 Koller 49483 X 3,254,461 6/ 1966 White et al 52204 FOREIGN PATENTS 1,241,209 8/1960 France.

377,086 6/1964 Switzerland.

DAVID J. WILLIAMOWSKY, Primary Examiner.

I. K. BELL, Assistant Examiner. 

